<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.first>li{
				display: inline-block;
				position: relative;
 			}
			li{
				width: 100px;
				list-style-type: none;
			}
			*{
				margin: 0;
				padding: 0;
			}
			.first>li>ul{
				display: none;
			}
			.first>li:hover>ul{
				display: block;
				position: absolute;
				left: 50px;
			}
		</style>
	</head>
	<body>
		<ul class="first">
			<li>11111
				<ul>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
				</ul>
			</li>
			<li>11111
				<ul>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
				</ul>
			</li>
			<li>11111
				<ul>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
					<li>22222</li>
				</ul>
			</li>
		</ul>
	</body>
</html>
